News
- Physics
Maxwell’s demon faces the heat
A device inspired by an 1867 thought experiment fails to break the second law of thermodynamics, which governs the flow of heat and the drive toward maximum disorder.
- Anthropology
People roamed tip of South America 18,500 years ago
Stone tools, charred animal bones and fire ash found at the Monte Verde site in Chile indicate people reached South America’s southernmost territory at least 18,500 years ago.
- Genetics
Water bears are genetic mash-ups
Drying out may help tardigrades soak up new DNA, which in turn aids the water bears in withstanding stress.
- Physics
Final chapter published in decades-long Gravity Probe B project
It took more than 50 years, but an experiment testing general relativity has finally come to a close.
